my @a = (
     '15179736712334102823,15203307381943332421,152033062464592402',
     '11230282334151797361',
     '12334105179128237367,1152033073819433324',
     '12334105179128237367,1152033073819433324###'
);

.say if /^ [\d+]+ % ',' $ / for @a;
